diff --git a/src/modules/navigator/mission_feasibility_checker.cpp b/src/modules/navigator/mission_feasibility_checker.cpp
index 8d9cca71c9..34f17ef0d4 100644
--- a/src/modules/navigator/mission_feasibility_checker.cpp
+++ b/src/modules/navigator/mission_feasibility_checker.cpp
@@ -307,14 +307,14 @@ MissionFeasibilityChecker::check_dist_1wp(dm_item_t dm_current, size_t nMissionI
 				if (mission_item.nav_cmd == NAV_CMD_DO_SET_SERVO){
 
 					//check actuator number
-			        if (mission_item.actuator_num<1 || mission_item.actuator_num>6) {
-			        	mavlink_log_critical(_mavlink_fd, "Actuator number %d is out of bounds 1..6", (int)mission_item.actuator_num);
+			        if (mission_item.actuator_num<0 || mission_item.actuator_num>5) {
+			        	mavlink_log_critical(_mavlink_fd, "Actuator number %d is out of bounds 0..5", (int)mission_item.actuator_num);
 			        	warning_issued = true;
 			        	return false;
 			        }
 					//check actuator value
-			        if (mission_item.actuator_value<900 || mission_item.actuator_value>2000) {
-			        	mavlink_log_critical(_mavlink_fd, "Actuator number %d is out of bounds 900..2000", (int)mission_item.actuator_value);
+			        if (mission_item.actuator_value<-2000 || mission_item.actuator_value>2000) {
+			        	mavlink_log_critical(_mavlink_fd, "Actuator value %d is out of bounds -2000..2000", (int)mission_item.actuator_value);
 			        	warning_issued = true;
 			        	return false;
 			        }